TWI815265B - Optical imaging lens - Google Patents

Abstract

An optical imaging lens may include a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element positioned in an order from an object side to an image side. Through designing concave and/or convex surfaces of the lens elements, the optical imaging lens may provide slim and compact appearance, small fno and great image height along with well image quality.

Description

An optical imaging lens

The invention relates to an optical imaging lens, in particular to a seven-piece optical imaging lens.

In recent years, optical imaging lenses have continued to evolve. In addition to requiring lenses to be thin and short, in order to meet more applications such as shooting smoothly under low light sources, in addition to designing a small aperture value (Fno) to increase luminous flux, it can also be designed to have a large aperture value (Fno). The optical imaging lens has a high image to match the larger image sensor to receive imaging light. As design specifications become increasingly stringent, how to design an optical imaging lens that is thin, short, small, has a small aperture value, has a large image height while maintaining good imaging quality has always been a design development goal.

In view of the above-mentioned problems, optical imaging lenses can provide features such as being thin and short, having small aperture values, and large image heights, while maintaining good image quality.

The present invention provides an optical imaging lens that can be used for capturing images and recording videos, such as optical imaging lenses for portable electronic devices such as mobile phones, cameras, tablet computers, and personal digital assistants (PDAs). The optical imaging lens includes sequentially from an object side to an image side along an optical axis. A first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, each lens has an object side facing the object side and allowing the imaging light to pass through. A side surface and an image side surface facing the image side and allowing imaging light to pass through. Through the concave and convex configuration of the seven lenses, the purpose of increasing resolution and simultaneously increasing aperture and image height is achieved.

In the disclosure of the present invention, the parameters listed in the following table are used, but are not limited to the use of only these parameters:

According to an optical imaging lens provided by an embodiment of the present invention, the second lens has negative refractive power, an optical axis area on the object side of the third lens is a concave surface, and a circumferential area on the object side of the fourth lens is a convex surface. An optical axis area on the object side of the fifth lens is a concave surface, the sixth lens has a negative refractive power and an optical axis area on the object side of the sixth lens is a convex surface, and an optical axis area on the image side of the seventh lens is a concave surface, And the lens of the optical imaging lens only has the above seven lenses.

According to an optical imaging lens provided by another embodiment of the present invention, the second lens has negative refractive power, an optical axis area on the object side of the third lens is concave, and a circumferential area on the image side of the third lens is convex. The fourth lens has positive refractive power and an optical axis area on the object side of the fourth lens is convex. The sixth lens has negative refractive power and a circumferential area on the image side of the sixth lens is convex. The seventh lens has negative refractive index. Diopter, the optical imaging lens only has the above seven lenses, and satisfies conditional expression (1): (T6+G67+T7)/(T2+T3+G34)≧2.500.

According to an optical imaging lens provided by another embodiment of the present invention, a circumferential area on the object side of the second lens is a convex surface, the third lens has negative refractive power, and an optical axis area on the object side of the third lens is a concave surface, and A circumferential area on the image side of the third lens is a convex surface, the sixth lens has a negative refractive power and an optical axis area on the image side of the sixth lens is a concave surface, and an optical axis area on the object side of the seventh lens is a concave surface, The optical imaging lens has only the above seven lenses and satisfies conditional expression (1).

The optical imaging lenses of the above three embodiments can also optionally satisfy the following conditional expression: Conditional expression (2): (T2+G56+T6)/T4≦1.600; Conditional expression (3): (G67+T7)/T5≧ 1.500; conditional expression (4): (G45+G56)/(G12+T2)≧1.500; conditional expression (5): AAG/(T3+BFL)≧1.700; conditional expression (6): (G12+G45)/ (G56+T6)≧1.400; Conditional expression (7): (G23+T4)/(T3+G34)≧2.800; conditional expression (8): (T1+T5)/(G56+T6)≧2.400; conditional expression (9): (T5+T6 +T7)/(T2+T3)≧2.200; conditional expression (10): (G45+G67)/T6≧3.000; conditional expression (11): ALT/(T1+G23)≦3.300; conditional expression (12): (G45+T5+G56)/BFL≧1.500; conditional expression (13): ImgH/Fno≧2.900 mm; conditional expression (14): (V5+V6+V7)/V4≧2.000; conditional expression (15): V3 +V6+V7≦110.000; conditional expression (16): TL/ImgH≦1.600; conditional expression (17): TTL/(T1+AAG)≦2.800; conditional expression (18): BFL/(G12+G23)≦1.500 .

The above-listed exemplary limiting formulas can also be selectively combined in different numbers and used in implementations of the present invention, and are not limited thereto. When implementing the present invention, in addition to the foregoing conditional expressions, additional concave and convex curved surface arrangements, refractive index changes, selection of various materials or other details of more lenses can also be designed for a single lens or for multiple lenses. Structure to enhance control over system performance and/or resolution. It should be noted that these details need to be selectively combined and applied to other embodiments of the present invention without conflict.

As can be seen from the above, by controlling the arrangement of the concave and convex surfaces of each lens, the optical imaging lens of the present invention can provide features such as being light, thin, short, having a small aperture value, and a large image height, while maintaining good imaging quality.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12: Optical imaging lens

100, 200, 300, 400, 500, L1, L2, L3, L4, L5, L6, L7: Lens

110, 410, 510, L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1, TFA1: object side

120, 320, L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, L7A2, TFA2: like side

130:Assembly Department

211, 212: Parallel rays

A1: object side

A2:Image side

CP: center point

CP1: first center point

CP2: Second center point

TP1: First transition point

TP2: Second transition point

OB: optical boundary

I: optical axis

Lc: main light

Lm: marginal light

EL: extension line

Z3: Relay area

M, R: intersection point

Z1, L1A1C, L1A2C, L2A1C, L2A2C, L3A1C, L3A2C, L4A1C, L4A2C, L5A1C, L5A2C, L6A1C, L6A2C, L7A1C, L7A2C: optical axis area

Z2, L1A1P, L1A2P, L2A1P, L2A2P, L3A1P, L3A2P, L4A1P, L4A2P, L5A1P, L5A2P, L6A1P, L6A2P, L7A1P, L7A2P: circumferential area

STO: aperture

TF: filter

IMA: imaging plane

In order to more clearly understand the embodiments in the present invention, please refer to the following drawings: [Fig. 1] is a radial cross-sectional view of a lens according to an embodiment of the present invention.

[Fig. 2] A schematic diagram illustrating the relationship between the lens surface shape and the light focus according to an embodiment of the present invention.

[Figure 3] Draws the relationship between the lens surface shape and the effective radius of Example 1.

[Fig. 4] Draws the relationship between the lens surface shape and the effective radius of Example 2.

[Fig. 5] Draws the relationship between the lens surface shape and the effective radius of Example 3.

[Fig. 6] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the first embodiment of the present invention.

[Fig. 7] A schematic diagram illustrating longitudinal spherical aberration and various aberrations of the optical imaging lens according to the first embodiment of the present invention.

[Fig. 8] shows detailed optical data of each lens of the optical imaging lens according to the first embodiment of the present invention.

[Fig. 9] shows aspheric surface data of the optical imaging lens according to the first embodiment of the present invention.

[Fig. 10] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the second embodiment of the present invention.

[Fig. 11] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the second embodiment of the present invention.

[Fig. 12] shows detailed optical data of each lens of the optical imaging lens according to the second embodiment of the present invention.

[Fig. 13] shows aspheric surface data of the optical imaging lens according to the second embodiment of the present invention.

[Fig. 14] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the third embodiment of the present invention.

[Fig. 15] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the third embodiment of the present invention.

[Fig. 16] shows detailed optical data of each lens of the optical imaging lens according to the third embodiment of the present invention.

[Fig. 17] shows aspheric surface data of the optical imaging lens according to the third embodiment of the present invention.

[Fig. 18] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the fourth embodiment of the present invention.

[Fig. 19] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the fourth embodiment of the present invention.

[Fig. 20] shows detailed optical data of each lens of the optical imaging lens according to the fourth embodiment of the present invention.

[Fig. 21] shows aspherical surface data of the optical imaging lens according to the fourth embodiment of the present invention.

[Fig. 22] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the fifth embodiment of the present invention.

[Fig. 23] A schematic diagram showing longitudinal spherical aberration and various aberrations of the optical imaging lens according to the fifth embodiment of the present invention.

[Fig. 24] shows detailed optical data of each lens of the optical imaging lens according to the fifth embodiment of the present invention.

[Fig. 25] shows aspherical surface data of the optical imaging lens according to the fifth embodiment of the present invention.

[Fig. 26] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the sixth embodiment of the present invention.

[Fig. 27] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the sixth embodiment of the present invention.

[Fig. 28] shows detailed optical data of each lens of the optical imaging lens according to the sixth embodiment of the present invention.

[Fig. 29] shows aspherical surface data of the optical imaging lens according to the sixth embodiment of the present invention.

[Fig. 30] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the seventh embodiment of the present invention.

[Fig. 31] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the seventh embodiment of the present invention.

[Fig. 32] shows detailed optical data of each lens of the optical imaging lens according to the seventh embodiment of the present invention.

[Fig. 33] shows aspherical surface data of the optical imaging lens according to the seventh embodiment of the present invention.

[Fig. 34] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the eighth embodiment of the present invention.

[Fig. 35] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the eighth embodiment of the present invention.

[Fig. 36] shows detailed optical data of each lens of the optical imaging lens according to the eighth embodiment of the present invention.

[Fig. 37] shows aspherical surface data of the optical imaging lens according to the eighth embodiment of the present invention.

[Fig. 38] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the ninth embodiment of the present invention.

[Fig. 39] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the ninth embodiment of the present invention.

[Fig. 40] shows detailed optical data of each lens of the optical imaging lens according to the ninth embodiment of the present invention.

[Fig. 41] shows aspherical surface data of the optical imaging lens according to the ninth embodiment of the present invention.

[Fig. 42] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the tenth embodiment of the present invention.

[Fig. 43] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the tenth embodiment of the present invention.

[Fig. 44] shows detailed optical data of each lens of the optical imaging lens according to the tenth embodiment of the present invention.

[Fig. 45] shows aspheric surface data of the optical imaging lens according to the tenth embodiment of the present invention.

[Fig. 46] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the eleventh embodiment of the present invention.

[Fig. 47] A schematic diagram showing the longitudinal spherical aberration and various aberrations of the optical imaging lens according to the eleventh embodiment of the present invention.

[Fig. 48] shows detailed optical data of each lens of the optical imaging lens according to the eleventh embodiment of the present invention.

[Fig. 49] shows aspherical surface data of the optical imaging lens according to the eleventh embodiment of the present invention.

[Fig. 50] A schematic cross-sectional view of the lens structure of the optical imaging lens according to the twelfth embodiment of the present invention.

[Fig. 51] A schematic diagram showing longitudinal spherical aberration and various aberrations of the optical imaging lens according to the twelfth embodiment of the present invention.

[Fig. 52] shows detailed optical data of each lens of the optical imaging lens according to the twelfth embodiment of the present invention.

[Fig. 53] shows aspherical surface data of the optical imaging lens according to the twelfth embodiment of the present invention.

[Figure 54A] and [Figure 54B] illustrate the parameters of the twelve embodiments of the present invention and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+ T5+G56)/BFL, (T2+G56+T6)/T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), ( V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG) , (T1+T5)/(G56+T6), BFL/(G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6 numerical table.

To further illustrate various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention. They are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person with ordinary skill in the art will be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale and similar component symbols are typically used to identify similar components.

The terms "optical axis area", "circumferential area", "concave surface" and "convex surface" used in this specification and patent claims should be interpreted based on the definitions listed in this specification.

The optical system in this specification includes at least one lens that receives the imaging light parallel to the optical axis of the incident optical system and at an angle of half a visual angle (HFOV) relative to the optical axis. The imaging light passes through the optical system and is imaged on the imaging surface. The term "a lens has positive refractive power (or negative refractive power)" means that the paraxial refractive index of the lens is positive (or negative) calculated based on Gaussian optical theory. The "object side (or image side) of a lens" is defined as the specific range where imaging light passes through the lens surface. Imaging rays include at least two types of rays: chief ray Lc and marginal ray Lm (as shown in Figure 1). The object side (or image side) of the lens can be divided into different areas according to different positions, including an optical axis area, a circumferential area, or one or more relay areas in some embodiments. The description of these areas will be detailed below. Elaborate.

FIG. 1 is a radial cross-sectional view of lens 100 . Two reference points on the surface of the lens 100 are defined: the center point and the transition point. The center point of the lens surface is an intersection point between the surface and the optical axis I. As illustrated in FIG. 1 , the first center point CP1 is located on the object side 110 of the lens 100 , and the second center point CP2 is located on the image side 120 of the lens 100 . The conversion point is a point on the surface of the lens whose tangent is perpendicular to the optical axis I. The optical boundary OB of the lens surface is defined as the point where the radially outermost edge ray Lm passing through the lens surface intersects the lens surface. All transition points are located between the optical axis I and the optical boundary OB of the lens surface. In addition, the surface of the lens 100 may not have a conversion point or may have at least one conversion point. If a single lens surface has a plurality of conversion points, the conversion points will be sequentially starting from the first conversion point in the radially outward direction. name. For example, the first conversion point TP1 (closest to the optical axis I), the second conversion point TP2 (as shown in Figure 4) and the Nth conversion point (farthest from the optical axis I).

When the lens surface has at least one conversion point, the range from the center point to the first conversion point TP1 is defined as the optical axis area, where the optical axis area includes the center point. The area radially outward from the conversion point farthest from the optical axis I (the Nth conversion point) to the optical boundary OB is defined as the circumferential area. In some embodiments, a relay region between the optical axis region and the circumferential region may be further included, and the number of relay regions depends on the number of conversion points. When the lens surface does not have a conversion point, 0% to 50% of the distance from the optical axis I to the optical boundary OB of the lens surface is defined as the optical axis area, and 50% of the distance from the optical axis I to the optical boundary OB of the lens surface is defined. %~100% is the circumferential area.

When light rays parallel to the optical axis I pass through an area, if the light rays are deflected toward the optical axis I and the intersection point with the optical axis I is located on the image side A2 of the lens, then the area is a convex surface. When a light ray parallel to the optical axis I passes through an area, if the intersection of the extension line of the light ray and the optical axis I is located on the object side A1 of the lens, then the area is a concave surface.

In addition, referring to FIG. 1 , the lens 100 may also include an assembly portion 130 extending radially outward from the optical boundary OB. The assembly part 130 is generally used for assembling the lens 100 to a corresponding component of the optical system (not shown). The imaging light does not reach the assembly part 130 . The structure and shape of the assembly part 130 are only examples to illustrate the present invention and do not limit the scope of the present invention. The assembly portion 130 of the lens discussed below may be partially or completely omitted in the drawings.

Referring to Figure 2, the optical axis area Z1 is defined between the center point CP and the first conversion point TP1. A circumferential area Z2 is defined between the first transition point TP1 and the optical boundary OB of the lens surface. As shown in FIG. 2 , after passing through the optical axis area Z1, the parallel ray 211 intersects the optical axis I on the image side A2 of the lens 200 . That is, the focus of the parallel ray 211 passing through the optical axis area Z1 is located at point R on the image side A2 of the lens 200 . Since the light ray intersects the optical axis I at the image side A2 of the lens 200, the optical axis area Z1 is a convex surface. On the contrary, the parallel light rays 212 diverge after passing through the circumferential area Z2. As shown in Figure 2, parallel rays 212 pass through the circumferential area The extension line EL after Z2 intersects the optical axis I on the object side A1 of the lens 200 , that is, the focus of the parallel light 212 passing through the circumferential area Z2 is located at point M on the object side A1 of the lens 200 . Since the extension line EL of the light ray intersects the optical axis I at the object side A1 of the lens 200, the circumferential area Z2 is a concave surface. In the lens 200 shown in FIG. 2 , the first transition point TP1 is the boundary between the optical axis area and the circumferential area, that is, the first transition point TP1 is the boundary point where the convex surface turns into a concave surface.

On the other hand, the surface concavity and convexity of the optical axis region can also be judged according to the judgment method of ordinary people in this field, that is, the surface of the optical axis region of the lens can be judged by the sign of the paraxial curvature radius (abbreviated as R value). Shaped concave and convex. R-values are commonly used in optical design software such as Zemax or CodeV. R-values are also commonly found in lens data sheets of optical design software. Taking the side of the object as an example, when the R value is positive, the optical axis area on the side of the object is determined to be convex; when the R value is negative, the optical axis area on the side of the object is determined to be concave. On the contrary, for the image side, when the R value is positive, the optical axis area on the image side is determined to be concave; when the R value is negative, the optical axis area on the image side is determined to be convex. The results determined by this method are consistent with the above-mentioned results determined by the intersection point of the light/ray extension line and the optical axis. The determination method of the intersection point of the light/ray extension line and the optical axis is that the focus of a light ray parallel to the optical axis is located on the lens. Use the object side or image side to judge the concave and convex shape of the face. The terms "a region is convex (or concave)", "a region is convex (or concave)" or "a convex (or concave) region" described in this specification can be used interchangeably.

Figures 3 to 5 provide examples of determining the surface shape and area boundaries of the lens area under various circumstances, including the aforementioned optical axis area, circumferential area and relay area.

FIG. 3 is a radial cross-sectional view of lens 300. Referring to FIG. 3 , the image side surface 320 of the lens 300 has only one transition point TP1 within the optical boundary OB. The optical axis area of the image side 320 of the lens 300 Domain Z1 and circumferential area Z2 are shown in Figure 3. The R value of this image side surface 320 is positive (that is, R>0). Therefore, the optical axis area Z1 is a concave surface.

Generally speaking, the surface shape of each area bounded by the conversion point will be opposite to the surface shape of the adjacent area. Therefore, the conversion point can be used to define the transformation of the surface shape, that is, from the conversion point to a concave surface to a convex surface or from a convex surface to a concave surface. In Figure 3, since the optical axis area Z1 is a concave surface and the surface shape changes at the transition point TP1, the circumferential area Z2 is a convex surface.

Figure 4 is a radial cross-sectional view of lens 400. Referring to FIG. 4 , there is a first conversion point TP1 and a second conversion point TP2 on the object side 410 of the lens 400 . The optical axis area Z1 of the object side surface 410 is defined between the optical axis I and the first conversion point TP1. The R value of the side surface 410 of this object is positive (that is, R>0). Therefore, the optical axis region Z1 is a convex surface.

The distance between the second conversion point TP2 and the optical boundary OB of the object side 410 of the lens 400 is defined as a circumferential area Z2, and the circumferential area Z2 of the object side 410 is also a convex surface. In addition, a relay region Z3 is defined between the first conversion point TP1 and the second conversion point TP2, and the relay region Z3 of the object side 410 is a concave surface. Referring again to FIG. 4 , the object side 410 sequentially includes the optical axis area Z1 between the optical axis I and the first conversion point TP1 radially outward from the optical axis I, and is located between the first conversion point TP1 and the second conversion point TP2 the relay area Z3, and the circumferential area Z2 between the second transition point TP2 and the optical boundary OB of the object side surface 410 of the lens 400. Since the optical axis area Z1 is a convex surface, the surface shape changes from the first conversion point TP1 to a concave surface, so the relay area Z3 becomes a concave surface, and the surface shape changes again from the second conversion point TP2 to a convex surface, so the circumferential area Z2 becomes a convex surface.

Figure 5 is a radial cross-sectional view of lens 500. There is no transition point on the object side 510 of lens 500 . For a lens surface without a transition point, such as the object side 510 of the lens 500, it is defined starting from the optical axis I 0%~50% of the distance to the optical boundary OB of the lens surface is the optical axis area, and 50%~100% of the distance from the optical axis I to the optical boundary OB of the lens surface is the circumferential area. Referring to the lens 500 shown in FIG. 5 , 50% of the distance from the optical axis I to the optical boundary OB of the surface of the lens 500 is defined as the optical axis area Z1 of the object side surface 510 . The R value of the side surface 510 of this object is positive (that is, R>0). Therefore, the optical axis region Z1 is a convex surface. Since the object side surface 510 of the lens 500 has no transition point, the circumferential area Z2 of the object side surface 510 is also a convex surface. The lens 500 may further have an assembly portion (not shown) extending radially outward from the circumferential area Z2.

The optical imaging lens of the present invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in sequence along an optical axis from the object side to the image side. and a seventh lens. Each of the first lens to the seventh lens includes an object side facing the object side and allowing the imaging light to pass through, and an image side facing the image side and allowing the imaging light to pass through. By designing the detailed features of each lens described below, the optical imaging lens of the present invention can provide higher resolution while having an increased aperture and image height.

The design of the refractive power and surface shape of the lens through the embodiment of the present invention, for example: the second lens has a negative refractive power, which can effectively correct the deflection angle of the light after passing through the first lens. If it is combined with the third lens, the optical axis area on the object side is: Concave surface, the fourth lens object side circumferential area is convex, the fifth lens object side optical axis area is concave, the sixth lens has negative refractive power, the sixth lens object side optical axis area is convex and the seventh lens image side optical axis The area is concave and isosurface, which can effectively increase the image height of the optical imaging lens and reduce the system aberration and distortion rate of the optical imaging lens.

The design of the refractive power and surface shape of the lens in the embodiment of the present invention is, for example: the first lens has a positive refractive power and can effectively collect the imaging light; the second lens has a negative refractive power and can correct the light passing through the first lens. The deflection angle behind the lens is combined with the fact that the optical axis area on the object side of the third lens is concave, the circumferential area on the object side of the fourth lens is convex, the sixth lens has negative refractive power, and the optical axis area on the object side of the sixth lens is convex. The seventh lens has negative refractive power, etc., which can effectively increase the image height of the optical imaging lens and reduce the system aberration and distortion rate of the optical imaging lens, and also has a small aperture value.

The design of the refractive power and surface shape of the lens through the embodiment of the present invention, for example: the second lens has a negative refractive power, which can effectively correct the deflection angle of the light after passing through the first lens. If it is combined with the third lens, the optical axis area on the object side is: The third lens has a concave surface, the image side circumferential area is convex, the fourth lens has positive refractive power, the fourth lens object side optical axis area is convex, the sixth lens has negative refractive power, and the seventh lens has negative refractive power, etc. , can effectively increase the image height of the optical imaging lens and reduce the system aberration and distortion rate of the optical imaging lens, and when (T6+G67+T7)/(T2+T3+G34)≧2.500 is satisfied, the large image can be designed The high optical imaging lens has the advantages of reducing the size and maintaining good imaging quality. The best range is 2.500≦(T6+G67+T7)/(T2+T3+G34)≦3.200. Furthermore, when the first Lenses with positive refractive power are helpful for narrowing the aperture value.

The design of the refractive power and surface shape of the lens in the embodiment of the present invention is, for example: the circumferential area of the object side of the second lens is convex, and the third lens has negative refractive power, the optical axis area of the object side of the third lens is concave, and the third lens image The side circumferential area is convex, the sixth lens has negative refractive power, the sixth lens image side optical axis area is concave, and the seventh lens object side optical axis area is concave, etc., which will help to correct the path of the imaging light through each lens and By improving aberration and satisfying (T6+G67+T7)/(T2+T3+G34)≧2.500, an optical imaging lens with a large image height can be designed while having the advantages of reducing the size and maintaining good imaging quality, which is better The range is 2.500≦(T6+G67+T7)/(T2+T3+G34)≦3.200.

Through the design of the refractive power and surface shape of the lens in the embodiment of the present invention, for example: the second lens has a negative refractive power, which can effectively correct the deflection angle of the light after passing through the first lens, and then through the object side of the second lens The circumferential area of the surface is convex and the third lens has negative refractive power. The optical axis area of the object side of the third lens is concave. The circumferential area of the image side of the third lens is convex. The sixth lens has negative refractive power and the image side of the sixth lens. The optical axis area is concave, etc., which will help correct the path of the imaging light through each lens and improve the aberration. When (T6+G67+T7)/(T2+T3+G34)≧2.500 is satisfied, the large image height can be designed The optical imaging lens has the advantages of reducing the size and maintaining good imaging quality. The optimal range is 2.500≦(T6+G67+T7)/(T2+T3+G34)≦3.200. Among them, the first lens also has A positive refractive power or a negative refractive power of the seventh lens is helpful for narrowing the aperture value.

In embodiments of the present invention, when at least one of the first lens and the seventh lens has a positive refractive index, it will be beneficial to reduce the aperture value and maintain good imaging quality.

Embodiments of the present invention satisfy one of the following three combinations: (a) the third lens has negative refractive power or the sixth lens has negative refractive power; (b) the third lens has negative refractive power or the seventh lens has negative refractive power (c) When the second lens has negative refractive power or the third lens has negative refractive power, the system sensitivity will be reduced.

Embodiments of the present invention can also effectively increase the image height and increase the amount of light by satisfying ImgH/Fno≧2.900 mm or TL/ImgH≦1.600. The preferred range is 2.900 mm≦ImgH/Fno≦4.200 mm, 1.000≦TL/ ImgH≦1.600.

Embodiments of the present invention also select appropriate materials to satisfy (V5+V6+V7)/V4≧2.000 or V3+V6+V7≦110.000, which can reduce chromatic aberration and simultaneously control the refraction angle of light to obtain better imaging quality. The better range is 2.000≦(V5+V6+V7)/V4≦5.000, 90.000≦V3+V6+V7≦110.000.

In order to shorten the length of the optical imaging lens system, the air gap between the lenses or the lens thickness can be appropriately adjusted, but the ease of production must be considered and the imaging quality must be ensured. Therefore, if the optical imaging lens of the embodiment of the present invention satisfies the numerical limit of the following conditional expression, it can have a better configuration: ALT/(T1+G23)≦3.300, and the better range is 2.500≦ALT/(T1+G23) ≦3.300; (G45+T5+G56)/BFL≧1.500, the better range is 1.500≦(G45+T5+G56)/BFL≦3.000; (T2+G56+T6)/T4≦1.600, the better range It is 0.500≦(T2+G56+T6)/T4≦1.600; (G67+T7)/T5≧1.500. The better range is 1.500≦(G67+T7)/T5≦4.500; (G45+G56)/(G12 +T2)≧1.500, the better range is 1.500≦(G45+G56)/(G12+T2)≦2.500; AAG/(T3+BFL)≧1.700, the better range is 1.700≦AAG/(T3+BFL )≦2.700; (G12+G45)/(G56+T6)≧1.400, the better range is 1.400≦(G12+G45)/(G56+T6)≦2.100; (G23+T4)/(T3+G34) ≧2.800, the better range is 2.800≦(G23+T4)/(T3+G34)≦6.600; TTL/(T1+AAG)≦2.800, the better range is 1.900≦TTL/(T1+AAG)≦2.800 ;(T1+T5)/(G56+T6)≧2.400, the better range is 2.400≦(T1+T5)/(G56+T6)≦3.400; BFL/(G12+G23)≦1.500, the better range is 0.600≦BFL/(G12+G23)≦1.500; (T5+T6+T7)/(T2+T3)≧2.200, the better range is 2.200≦(T5+T6+T7)/(T2+T3)≦ 3.200; (G45+G67)/T6≧3.000, the better range is 3.000≦(G45+G67)/T6≦4.500.

In addition, any combination of the parameters of the embodiments can be selected to increase the restrictions on the optical imaging lens, so as to facilitate the design of the optical imaging lens with the same structure of the present invention. In view of the impossibility of optical system design Predictability, under the framework of the present invention, meeting the above conditional expression can better shorten the length of the optical imaging lens of the present invention, increase the field of view, improve the imaging quality, or improve the assembly yield and improve the shortcomings of the previous technology.

In order to illustrate that the present invention can indeed provide good optical performance and expand the viewing angle, multiple embodiments and their detailed optical data are provided below. First, please refer to FIGS. 6 to 9 together. FIG. 6 shows a schematic cross-sectional structural view of the optical imaging lens 1 according to the first embodiment of the present invention. FIG. 7 shows the optical imaging according to the first embodiment of the present invention. Schematic diagram of the longitudinal spherical aberration and various aberrations of the lens 1. Figure 8 shows the detailed optical data of the optical imaging lens 1 according to the first embodiment of the present invention. Figure 9 shows the optical imaging according to the first embodiment of the present invention. Aspherical surface data of each lens of Lens 1.

As shown in FIG. 6 , the optical imaging lens 1 of this embodiment includes an aperture stop STO, a first lens L1, a second lens L2, and a third lens L3 in order from the object side A1 to the image side A2. , a fourth lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7. A filter TF and an imaging plane IMA of an image sensor (not shown) are both disposed on the image side A2 of the optical imaging lens 1 . The first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, the seventh lens L7 and the filter TF respectively include an object side surface L1A1 facing the object side A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1, TFA1 and the image side L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, L7A2, TFA2 toward the image side A2. In this embodiment, the filter TF is disposed between the seventh lens L7 and the imaging surface IMA. It can be an infrared cut-off filter to prevent the infrared rays in the light from being transmitted to the imaging surface. And affect the image quality.

In this embodiment, the detailed structure of each lens of the optical imaging lens 1 can be referred to the drawings. In order to achieve the purpose of product lightweight, the first lens L1, the second lens L2, the third lens L3, and the The four lenses L4, the fifth lens L5, the sixth lens L6, and the seventh lens L7 can be made of plastic material, but are not limited thereto.

In the first embodiment, the first lens L1 has positive refractive power. The optical axis area L1A1C and the circumferential area L1A1P of the object side surface L1A1 of the first lens L1 are both convex surfaces. The optical axis area L1A2C and the circumferential area L1A2P of the image side surface L1A2 of the first lens L1 are both concave surfaces.

The second lens L2 has negative refractive power. The optical axis area L2A1C and the circumferential area L2A1P of the object side surface L2A1 of the second lens L2 are both convex surfaces. The optical axis area L2A2C and the circumferential area L2A2P of the image side surface L2A2 of the second lens L2 are both concave surfaces.

The third lens L3 has negative refractive power. The optical axis area L3A1C and the circumferential area L3A1P of the object side surface L3A1 of the third lens L3 are both concave surfaces. The optical axis area L3A2C and the circumferential area L3A2P of the image side surface L3A2 of the third lens L3 are both convex surfaces.

The fourth lens L4 has positive refractive power. The optical axis area L4A1C and the circumferential area L4A1P of the object side surface L4A1 of the fourth lens L4 are both convex surfaces. The optical axis area L4A2C of the image side surface L4A2 of the fourth lens L4 is a concave surface, and the circumferential area L4A2P of the image side surface L4A2 of the fourth lens L4 is a convex surface.

The fifth lens L5 has positive refractive power. The optical axis area L5A1C and the circumferential area L5A1P of the object side surface L5A1 of the fifth lens L5 are both concave surfaces. The optical axis area L5A2C and the circumferential area L5A2P of the image side surface L5A2 of the fifth lens L5 are both convex surfaces.

The sixth lens L6 has negative refractive power. The optical axis area L6A1C of the object side surface L6A1 of the sixth lens L6 is a convex surface, and the circumferential area L6A1P of the object side surface L6A1 of the sixth lens L6 is a concave surface. The optical axis area L6A2C of the image side surface L6A2 of the sixth lens L6 is a concave surface, and the circumferential area L6A2P of the image side surface L6A2 of the sixth lens L6 is a convex surface.

The seventh lens L7 has negative refractive power. The optical axis area L7A1C of the object side surface L7A1 of the seventh lens L7 is a concave surface, and the circumferential area L7A1P of the object side surface L7A1 of the seventh lens L7 is a convex surface. The optical axis area L7A2C of the image side surface L7A2 of the seventh lens L7 is a concave surface, and the circumferential area L7A2P of the image side surface L7A2 of the seventh lens L7 is a convex surface.

The object side L1A1 and the image side L1A2 of the first lens L1, the object side L2A1 and the image side L2A2 of the second lens L2, the object side L3A1 and the image side L3A2 of the third lens L3, the object side L4A1 and the image side of the fourth lens L4 L4A2, the object side L5A1 and image side L5A2 of the fifth lens L5, the object side L6A1 and image side L6A2 of the sixth lens L6, and the object side L7A1 and image side L7A2 of the seventh lens L7, a total of fourteen aspherical surfaces are as follows: Aspheric curve formula (1) definition:

Z represents the depth of the aspheric surface (the vertical distance between a point on the aspheric surface that is Y from the optical axis and a plane tangent to the vertex on the optical axis of the aspheric surface); R represents the radius of curvature of the lens surface; Y represents The vertical distance between a point on the aspherical surface and the optical axis; K is the cone coefficient (Conic Constant); a _2i is the 2ith-order aspherical coefficient.

Please refer to Figure 9 for detailed parameter data of each aspherical surface.

FIG. 7A is a schematic diagram of longitudinal spherical aberration at three representative wavelengths (470 nm, 555 nm, and 650 nm) in this embodiment, where the vertical axis is defined as the field of view. FIG. 7B is a schematic diagram of field curvature aberration in the sagittal direction at three representative wavelengths (470 nm, 555 nm, and 650 nm) in this embodiment. The vertical axis is defined as the image height. FIG. 7C is a schematic diagram of field curvature aberration in the tangential direction at three representative wavelengths (470 nm, 555 nm, and 650 nm) in this embodiment, in which the vertical axis is defined as the image height. Figure 7D illustrates this implementation Schematic diagram of distortion aberration of an example, the vertical axis is the image height. Off-axis rays of three representative wavelengths (470nm, 555nm, 650nm) at different heights are concentrated near the imaging point. The curves formed by each wavelength are very close, indicating that off-axis rays of different heights for each wavelength are concentrated near the imaging point. From the longitudinal spherical aberration of each curve in Figure 7A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.016~0.02mm. Therefore, this embodiment does significantly improve the longitudinal spherical aberration at different wavelengths. In addition, referring to Figure 7B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.02~0.03mm. Referring to Figure 7C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.02~0.09mm. Referring to the horizontal axis of Figure 7D, the distortion aberration is maintained within the range of 0~3%.

As shown in Figure 8, the aperture value (Fno) of the optical imaging lens 1 is 2.009, and the image height (ImgH) is 6.700mm. With the various phase difference values shown in Figure 7, the optical imaging lens 1 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54A.

Please also refer to FIGS. 10 to 13 . FIG. 10 is a schematic cross-sectional structural view of the optical imaging lens 2 according to the second embodiment of the present invention. FIG. 11 is a schematic diagram of the optical imaging lens 2 according to the second embodiment of the present invention. Schematic diagram of longitudinal spherical aberration and various aberrations of the lens 2. Figure 12 shows detailed optical data of the optical imaging lens 2 according to the second embodiment of the present invention. Figure 13 shows the optical data of the second embodiment of the present invention. Aspherical surface data of each lens of imaging lens 2.

As shown in FIG. 10 , the optical imaging lens 2 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The rough configuration of the surface of the object side L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1 and the image side L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, L7A2 of the second embodiment and the refractive index configuration of each lens are roughly The above is similar to the first embodiment. However, the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspherical coefficient and effective focal length of the second embodiment are also different from those of the first embodiment.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 2 of this embodiment, please refer to FIG. 12 .

From the longitudinal spherical aberration of each curve in Figure 11A, it can be seen that the deviation of the imaging points of off-axis rays at different heights is controlled within the range of -0.006~0.016mm. Referring to Figure 11B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.04~0.04mm. Referring to Figure 11C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.06~0.14mm. Referring to the horizontal axis of Figure 11D, the distortion aberration of the optical imaging lens 2 is maintained in the range of 0~2.5%. Compared with the first embodiment, the longitudinal spherical aberration and distortion aberration of this embodiment are smaller.

As shown in Figure 12, the aperture value of the optical imaging lens 2 is 2.303, and the image height is 6.700mm. With the various phase difference values shown in Figure 11, the optical imaging lens 2 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6 ), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/(G12+G23), (T5+T6 +T7)/(T2+T3) and (G45+G67)/T6 values, please refer to Figure 54A.

Please also refer to FIGS. 14 to 17 . FIG. 14 shows a schematic cross-sectional structural view of the optical imaging lens 3 according to the third embodiment of the present invention. FIG. 15 shows the optical imaging according to the third embodiment of the present invention. Schematic diagram of the longitudinal spherical aberration and various aberrations of the lens 3. Figure 16 shows the detailed optical data of the optical imaging lens 3 according to the third embodiment of the present invention. Figure 17 shows the optical data of the third embodiment of the present invention. Aspherical surface data of each lens of imaging lens 3.

As shown in Figure 14, the optical imaging lens 3 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The concave and convex configurations of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, and L7A1 and the image side surfaces L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, and L7A2 of the third embodiment and the refractive index configuration of each lens are roughly The above is similar to the first embodiment. However, the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspherical coefficient and effective focal length of the third embodiment are also different from those of the first embodiment.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 3 of this embodiment, please refer to FIG. 16 .

From the longitudinal spherical aberration of each curve in Figure 15A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.016~0.018mm. Referring to Figure 15B, the three representative wavelengths are The field curvature aberration within a field of view falls within the range of -0.02~-0.04mm. Referring to Figure 15C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.02~0.08mm. Referring to the horizontal axis of Figure 15D, the distortion aberration of the optical imaging lens 3 is maintained in the range of 0~5%. Compared with the first embodiment, the optical imaging lens 3 of this embodiment has smaller longitudinal spherical aberration and meridional field curvature aberration.

As shown in Figure 16, the aperture value of the optical imaging lens 3 is 2.085, and the image height is 6.700mm. With the various phase difference values shown in Figure 15, the optical imaging lens 3 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54A.

Please also refer to FIGS. 18 to 21 . FIG. 18 is a schematic cross-sectional view of the optical imaging lens 4 according to the fourth embodiment of the present invention. FIG. 19 is a schematic diagram of the optical imaging lens 4 according to the fourth embodiment of the present invention. Schematic diagram of the longitudinal spherical aberration and various aberrations of the lens 4. Figure 20 shows the detailed optical data of the optical imaging lens 4 according to the fourth embodiment of the present invention. Figure 21 shows the optical data of the fourth embodiment of the present invention. Aspherical surface data of each lens of imaging lens 4.

As shown in FIG. 18 , the optical imaging lens 4 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The concave and convex configurations of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1 and the image side surfaces L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, and L7A2 of the fourth embodiment, and other than the third lens L3 The refractive power configuration of each lens is substantially similar to the first embodiment. However, the third lens L3 has a positive refractive power, which is different from the first embodiment. In addition, the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspherical coefficient and effective focal length of the fourth embodiment are also different from those of the first embodiment.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 4 of this embodiment, please refer to FIG. 20 .

From the longitudinal spherical aberration of each curve in Figure 19A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.045~0.04mm. Referring to Figure 19B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.05~0.05mm. Referring to Figure 19C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.25~0.05mm. Referring to the horizontal axis of Figure 19D, the distortion aberration of the optical imaging lens 4 is maintained in the range of 0~4%.

As shown in Figure 20, the aperture value of the optical imaging lens 4 is 2.307, and the image height is 6.700mm. With the various phase difference values shown in Figure 19, the optical imaging lens 4 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/(G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6 For values, please refer to Figure 54A.

Please also refer to FIGS. 22 to 25 . FIG. 22 is a schematic cross-sectional view of the optical imaging lens 5 according to the fifth embodiment of the present invention. FIG. 23 is a schematic view of the optical imaging lens 5 according to the fifth embodiment of the present invention. Schematic diagram of longitudinal spherical aberration and various aberrations of the lens 5. Figure 24 shows detailed optical data of the optical imaging lens 5 according to the fifth embodiment of the present invention. Figure 25 shows the optical imaging lens according to the fifth embodiment of the present invention. 5. Aspherical surface data of each lens.

As shown in Figure 22, the optical imaging lens 5 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The concave and convex configurations of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, and L7A1 and the image side surfaces L1A2, L2A2, L3A2, L5A2, L6A2, and L7A2 of the fifth embodiment are substantially the same as those of the refractive index configuration of each lens. The first embodiment is similar to the first embodiment, but the surface concave and convex configuration of the side image L4A2 is different from the first embodiment. In addition, the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspheric coefficient and effective focal length of the fifth embodiment are also different from those of the first embodiment. Specifically, the optical axis region L4A2C of the image side surface L4A2 of the fourth lens L4 is a convex surface.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 5 of this embodiment, please refer to Figure 24.

From the longitudinal spherical aberration of each curve in Figure 23A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.015~0.025mm. Referring to Figure 23B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.02~0.04mm. Refer to Figure 23C, three representative waves Field curvature aberration over the entire field of view falls within the range of -0.02~0.18mm. Referring to the horizontal axis of Figure 23D, the distortion aberration of the optical imaging lens 5 is maintained in the range of 0~3%.

As shown in Figure 24, the aperture value of the optical imaging lens 5 is 1.705, and the image height is 6.700mm. With the various phase difference values shown in Figure 23, the optical imaging lens 5 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54A.

Please also refer to FIGS. 26 to 29 . FIG. 26 is a schematic cross-sectional view of the optical imaging lens 6 according to the sixth embodiment of the present invention. FIG. 27 is a schematic diagram of the optical imaging lens 6 according to the sixth embodiment of the present invention. Schematic diagram of longitudinal spherical aberration and various aberrations of the lens 6. Figure 28 shows detailed optical data of the optical imaging lens 6 according to the sixth embodiment of the present invention. Figure 29 shows the optical imaging lens according to the sixth embodiment of the present invention. 6. Aspherical surface data of each lens.

As shown in Figure 26, the optical imaging lens 6 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The concave and convex configurations of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, and L7A1 and the image side surfaces L1A2, L2A2, L3A2, L5A2, L6A2, and L7A2 of the sixth embodiment are substantially the same as those of the refractive index configuration of each lens. Similar to the first embodiment, however the surface of side L4A2 The concave and convex configuration is different from the first embodiment. In addition, the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspherical coefficient and effective focal length of the sixth embodiment are also different from those of the first embodiment. Specifically, the optical axis region L4A2C of the image side surface L4A2 of the fourth lens L4 is a convex surface.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 6 of this embodiment, please refer to Figure 28.

From the longitudinal spherical aberration of each curve in Figure 27A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.015~0.025mm. Referring to Figure 27B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.02~0.04mm. Referring to Figure 27C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.04~0.18mm. Referring to the horizontal axis of Figure 27D, the distortion aberration of the optical imaging lens 6 is maintained in the range of 0~4%.

As shown in Figure 28, the aperture value of the optical imaging lens 6 is 1.704, and the image height is 6.700mm. With the various phase difference values shown in Figure 27, the optical imaging lens 6 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54A.

Please also refer to FIGS. 30 to 33 . FIG. 30 is a schematic cross-sectional view of the optical imaging lens 7 according to the seventh embodiment of the present invention, and FIG. 31 is a schematic diagram of the seventh embodiment of the present invention. A schematic diagram of longitudinal spherical aberration and various aberrations of the optical imaging lens 7. Figure 32 shows detailed optical data of the optical imaging lens 7 according to the seventh embodiment of the present invention. Figure 33 shows the detailed optical data of the optical imaging lens 7 according to the seventh embodiment of the present invention. Aspheric surface data of each lens of the optical imaging lens 7.

As shown in FIG. 30 , the optical imaging lens 7 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The concave and convex configurations of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, and L7A1 and the image side surfaces L1A2, L2A2, L3A2, L5A2, L6A2, and L7A2 of the seventh embodiment are substantially the same as those of the refractive index configuration of each lens. The first embodiment is similar, but the surface concave and convex configuration of the image side L4A2 is different from the first embodiment. In addition, the optical parameters of the curvature radius, lens thickness, lens aspheric coefficient and effective focal length of each lens surface of the seventh embodiment are also different from those of the first embodiment. Specifically, the circumferential area L4A2P of the image side surface L4A2 of the fourth lens L4 is a concave surface.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 7 of this embodiment, please refer to Figure 32.

From the longitudinal spherical aberration of each curve in Figure 31A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.02~0.025mm. Referring to Figure 31B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.04~0.04mm. Referring to Figure 31C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.04~0.12mm. Referring to the horizontal axis of Figure 31D, the distortion aberration of the optical imaging lens 7 is maintained in the range of 0~4%.

As shown in Figure 32, the aperture value of the optical imaging lens 7 is 1.721, and the image height is 6.700mm. With the various phase difference values shown in Figure 31, the optical imaging lens 7 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54B.

Please also refer to FIGS. 34 to 37 . FIG. 34 is a schematic cross-sectional view of the optical imaging lens 8 according to the eighth embodiment of the present invention. FIG. 35 is a schematic diagram of the optical imaging lens 8 according to the eighth embodiment of the present invention. Schematic diagram of longitudinal spherical aberration and various aberrations of the lens 8. Figure 36 shows detailed optical data of the optical imaging lens 8 according to the eighth embodiment of the present invention. Figure 37 shows the optical imaging lens according to the eighth embodiment of the present invention. 8. Aspheric data of each lens.

As shown in Figure 34, the optical imaging lens 8 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The concave and convex configurations of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, and L7A1 and the image side surfaces L2A2, L3A2, L4A2, L5A2, L6A2, and L7A2 of the eighth embodiment are substantially the same as those of the refractive index configuration of each lens. The first embodiment is similar, but the surface concave and convex configuration of the image side L1A2 is different from the first embodiment. In addition, the curvature radius and lens surface of each lens surface of the eighth embodiment are The optical parameters of mirror thickness, lens aspherical coefficient and effective focal length are also different from those of the first embodiment. Specifically, the optical axis region L1A2P of the image side surface L1A2 of the first lens L1 is a convex surface.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 8 of this embodiment, please refer to FIG. 36 .

From the longitudinal spherical aberration of each curve in Figure 35A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.01~0.012mm. Referring to Figure 35B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.02~0.02mm. Referring to Figure 35C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.08~0.07mm. Referring to the horizontal axis of Figure 35D, the distortion aberration of the optical imaging lens 8 is maintained in the range of 0~4%. Compared with the first embodiment, the longitudinal spherical aberration and the field curvature aberration in the sagittal direction of this embodiment are smaller.

As shown in Figure 36, the aperture value of the optical imaging lens 8 is 2.310, and the image height is 6.700mm. With the various phase difference values shown in Figure 35, the optical imaging lens 8 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54B.

Please also refer to FIGS. 38 to 41 . FIG. 38 is a schematic cross-sectional view of the optical imaging lens 9 according to the ninth embodiment of the present invention, and FIG. 39 is a schematic diagram of the ninth embodiment of the present invention. A schematic diagram of longitudinal spherical aberration and various aberrations of the optical imaging lens 9. Figure 40 shows detailed optical data of the optical imaging lens 9 according to the ninth embodiment of the present invention. Figure 41 shows the detailed optical data of the optical imaging lens 9 according to the ninth embodiment of the present invention. Aspheric surface data of each lens of the optical imaging lens 9.

As shown in Figure 38, the optical imaging lens 9 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The rough configuration of the surface of the object side L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1 and the image side L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, L7A2 and the refractive index configuration of each lens in the ninth embodiment are roughly The above is similar to the first embodiment. In addition, the optical parameters of the curvature radius, lens thickness, lens aspheric coefficient and effective focal length of each lens surface of the ninth embodiment are also different from those of the first embodiment.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 9 of this embodiment, please refer to Figure 40.

From the longitudinal spherical aberration of each curve in Figure 39A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.01~0.03mm. Referring to Figure 39B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.04~0.03mm. Referring to Figure 39C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.05~0.07mm. Referring to the horizontal axis of Figure 39D, the distortion aberration of the optical imaging lens 9 is maintained in the range of 0~4.5%. Compared with the first embodiment, the field curvature aberration in the meridional direction of this embodiment is smaller.

As shown in Figure 40, the aperture value of the optical imaging lens 9 is 1.703, and the image height is 6.700mm. With the various phase difference values shown in Figure 39, the optical imaging lens 9 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54B.

Please also refer to FIGS. 42 to 45 . FIG. 42 is a schematic cross-sectional view of the optical imaging lens 10 according to the tenth embodiment of the present invention. FIG. 43 is a schematic view of the optical imaging lens 10 according to the tenth embodiment of the present invention. Schematic diagram of longitudinal spherical aberration and various aberrations of the lens 10. Figure 44 shows detailed optical data of the optical imaging lens 10 according to the tenth embodiment of the present invention. Figure 45 shows the optical imaging lens according to the tenth embodiment of the present invention. 10. Aspherical surface data of each lens.

As shown in FIG. 42 , the optical imaging lens 10 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The concave and convex configurations of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1 and the image side surfaces L1A2, L2A2, L3A2, L5A2, L6A2, L7A2 and the refractive index configuration of each lens in the tenth embodiment are substantially the same as The first embodiment is similar, but the surface concave and convex configuration of the image side L4A2 is different from the first embodiment. In addition, the curvature radius and lens surface of each lens surface of the tenth embodiment are The optical parameters of mirror thickness, lens aspherical coefficient and effective focal length are also different from those of the first embodiment. Specifically, the optical axis region L4A2C of the image side surface L4A2 of the fourth lens L4 is a convex surface.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 10 of this embodiment, please refer to FIG. 44 .

From the longitudinal spherical aberration of each curve in Figure 43A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.006~0.016mm. Referring to Figure 43B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.05~0.1mm. Referring to Figure 43C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.25~0.1mm. Referring to the horizontal axis of Figure 43D, the distortion aberration of the optical imaging lens 10 is maintained in the range of 0~3%. Compared with the first embodiment, the longitudinal spherical aberration of this embodiment is smaller.

As shown in Figure 44, the aperture value of the optical imaging lens 10 is 2.310, and the image height is 6.700mm. With the various phase difference values shown in Figure 43, the optical imaging lens 10 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54B.

Please also refer to FIGS. 46 to 49 . FIG. 46 is a schematic cross-sectional view of the optical imaging lens 11 according to the eleventh embodiment of the present invention. FIG. 47 is a schematic diagram of the eleventh embodiment of the present invention. Schematic diagram of longitudinal spherical aberration and various aberrations of the optical imaging lens 11 of the embodiment. Figure 48 shows detailed optical data of the optical imaging lens 11 according to the eleventh embodiment of the present invention. Figure 49 shows the tenth embodiment of the present invention. Aspheric surface data of each lens of the optical imaging lens 11 of an embodiment.

As shown in Figure 46, the optical imaging lens 11 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The uneven configuration of the surfaces of the object side L1A1, L3A1, L4A1, L5A1, L6A1 and the image side L2A2, L3A2, L5A2, L6A2, L7A2 of the eleventh embodiment and the refractive index configuration of each lens are generally similar to those of the first embodiment. , however, the refractive power of the fourth lens L4 and the uneven configuration of the surfaces of the object side surfaces L2A1 and L7A1 and the image side surfaces L1A2 and L4A2 are different from those of the first embodiment. In addition, the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspherical coefficient and effective focal length of the tenth embodiment are also different from those of the first embodiment. Specifically, the fourth lens L4 has negative refractive power, the circumferential area L1A2P of the image side L1A2 of the first lens L1 is a convex surface, the optical axis area L2A1C of the object side L2A1 of the second lens L2 is a concave surface, and the fourth lens L4 has a negative refractive power. The circumferential area L4A2P of the image side L4A2 is a concave surface, and the circumferential area L7A1P of the object side L7A1 of the seventh lens L7 is a concave surface.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 11 of this embodiment, please refer to Figure 48.

From the longitudinal spherical aberration of each curve in Figure 47A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.03~0.035mm. Referring to Figure 47B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.05~0.1mm. Refer to Figure 47C, three representative waves Field curvature aberration over the entire field of view falls within the range of -0.3~0.15mm. Referring to the horizontal axis of Figure 47D, the distortion aberration of the optical imaging lens 11 is maintained in the range of 0~4%.

As shown in Figure 48, the aperture value of the optical imaging lens 11 is 2.310, and the image height is 6.700mm. With the various phase difference values shown in Figure 47, the optical imaging lens 11 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54B.

Please also refer to FIGS. 50 to 53 , wherein FIG. 50 is a schematic cross-sectional structural view of the optical imaging lens 12 according to the twelfth embodiment of the present invention, and FIG. 51 is a schematic diagram of the optical imaging lens 12 according to the twelfth embodiment of the present invention. Schematic diagram of longitudinal spherical aberration and various aberrations of the optical imaging lens 12. Figure 52 shows detailed optical data of the optical imaging lens 12 according to the twelfth embodiment of the present invention. Figure 53 shows the twelfth embodiment of the present invention. Aspherical surface data of each lens of the optical imaging lens 12.

As shown in FIG. 50 , the optical imaging lens 12 of this embodiment includes an aperture STO, a first lens L1, a second lens L2, a third lens L3, and a fourth lens in order from the object side A1 to the image side A2. Lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens L7.

The uneven configuration of the surfaces of the object side surfaces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1 and the image side surfaces L2A2, L3A2, L5A2, L6A2, and L7A2 of the twelfth embodiment are substantially the same as those of the first embodiment. The example is similar, but the refractive power of the fifth lens L5 and the object side L7A1 The uneven arrangement of the surfaces of the image side surfaces L1A2 and L4A2 is different from that of the first embodiment. In addition, the optical parameters of the radius of curvature of each lens surface, lens thickness, lens aspherical coefficient and effective focal length of the tenth embodiment are also different from those of the first embodiment. Specifically, the fifth lens L5 has negative refractive power, the circumferential area L1A2P of the image side L1A2 of the first lens L1 is a convex surface, the optical axis area L4A2C of the image side L4A2 of the fourth lens L4 is a convex surface, and the seventh lens L7 has a convex surface. The circumferential area L7A1P of the object side surface L7A1 is concave.

In order to more clearly illustrate the drawings of this embodiment, the features of the concave and convex configuration on the lens surface are only marked with differences from the first embodiment, and the same reference numerals are omitted. Regarding the optical characteristics of each lens of the optical imaging lens 12 of this embodiment, please refer to FIG. 48 .

From the longitudinal spherical aberration of each curve in Figure 47A, it can be seen that the deviation of the imaging points of off-axis light rays at different heights is controlled within the range of -0.02~0.025mm. Referring to Figure 47B, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.03~0.05mm. Referring to Figure 47C, the field curvature aberrations of the three representative wavelengths across the entire field of view fall within the range of -0.06~0.07mm. Referring to the horizontal axis of FIG. 47D , the distortion aberration of the optical imaging lens 12 is maintained in the range of 0~4.5%.

As shown in Figure 48, the aperture value of the optical imaging lens 12 is 2.310, and the image height is 6.700mm. With the various phase difference values shown in Figure 47, the optical imaging lens 12 of this embodiment can increase the aperture and image height while taking into account the imaging quality.

Regarding the parameters of this embodiment and (T6+G67+T7)/(T2+T3+G34), ALT/(T1+G23), (G45+T5+G56)/BFL, (T2+G56+T6)/ T4, (G67+T7)/T5, (G45+G56)/(G12+T2), ImgH/Fno, AAG/(T3+BFL), (V5+V6+V7)/V4, V3+V6+V7, (G12+G45)/(G56+T6), TL/ImgH, (G23+T4)/(T3+G34), TTL/(T1+AAG), (T1+T5)/(G56+T6), BFL/ For the values of (G12+G23), (T5+T6+T7)/(T2+T3) and (G45+G67)/T6, please refer to Figure 54B.

The numerical range including the maximum and minimum values obtained from the combination proportional relationship of the optical parameters disclosed in various embodiments of the present invention can be implemented accordingly.

The longitudinal spherical aberration, field curvature aberration, and distortion of each embodiment of the present invention all comply with the usage specifications. In addition, the three representative wavelengths of off-axis rays at different heights are concentrated near the imaging point. From the deflection amplitude of each curve, it can be seen that the deviation of the imaging point of the off-axis rays at different heights is controlled and has good spherical aberration. Aberration and distortion suppression capabilities. Referring further to the imaging quality data, the distances between the three representative wavelengths are also quite close to each other, which shows that the present invention has good concentration of light of different wavelengths under various conditions and has excellent dispersion suppression capabilities. Therefore, it can be seen from the above that the present invention has good optical performance. .

In view of the unpredictability of optical system design, under the structure of the present invention, meeting the above conditional expression can better shorten the length of the lens of the present invention, reduce the spherical aberration, aberration and distortion of the optical system, and improve the field of view angle of the optical imaging system. Enlargement and imaging quality are improved, or assembly yield is improved to improve the shortcomings of previous technologies.

The content disclosed in each embodiment of the present invention includes but is not limited to optical parameters such as focal length, lens thickness, Abbe number, etc. For example, the present invention discloses an optical parameter A and an optical parameter B in each embodiment, wherein these optical parameters The specific explanations of the covered range, the comparative relationship between optical parameters and the conditional range covered by multiple embodiments are as follows:

(1) The range covered by optical parameters, for example: α ₂ ≦A≦α ₁ or β ₂ ≦B≦β ₁ , α ₁ is the maximum value of optical parameter A in multiple embodiments, α ₂ is optical parameter A The minimum value in multiple embodiments, β ₁ is the maximum value of optical parameter B in multiple embodiments, and β ₂ is the minimum value of optical parameter B in multiple embodiments.

(2) The comparison relationship between optical parameters, for example: A is greater than B or A is less than B.

(3) The range of conditional expressions covered by multiple embodiments, specifically, the combination relationships or proportional relationships obtained by possible operations on multiple optical parameters of the same embodiment, these relationships are defined as E. E can be, for example: A+B or AB or A/B or A*B or (A*B) ^1/2 , and E satisfies the conditional expression E≦γ ₁ or E≧γ ₂ or γ ₂ ≦E≦γ ₁ , γ ₁ and γ ₂ are values obtained through calculation of optical parameter A and optical parameter B of the same embodiment, and γ ₁ is the maximum value among multiple embodiments of the present invention, and γ ₂ is the maximum value among multiple embodiments of the present invention. the minimum value in . The range covered by the above-mentioned optical parameters, the comparative relationship between the optical parameters and the maximum value, minimum value and the numerical range within the maximum value and the minimum value of the conditional expressions are all features that the present invention can be implemented according to, and they all belong to the present invention. The scope of what is revealed. The above are only examples and should not be used as a limitation.

The embodiments of the present invention can be implemented, and some feature combinations can be extracted in the same embodiment. Compared with the prior art, this feature combination can also achieve unexpected effects. This feature combination includes but is not limited to surface shape. , refractive power, conditional expression and other characteristics. The disclosure of the embodiments of the present invention is a specific example to illustrate the principles of the present invention, and the present invention should not be limited to the disclosed embodiments. Furthermore, the embodiments and the accompanying drawings are only for demonstration of the present invention and are not limited by time limit.

The above description is based on a number of different embodiments of the present invention, in which various features can be implemented singly or in different combinations. Therefore, the disclosed embodiments of the present invention are specific examples to illustrate the principles of the present invention, and the present invention should not be limited to the disclosed embodiments. Furthermore, the previous description and the accompanying drawings are only for demonstration of the present invention and are not limited thereto. Changes or combinations of other elements are possible without departing from the spirit and scope of the invention.

1. Optical imaging lens STO Aperture L1 First lens L2　Second lens L3　Third lens L4　Fourth lens L5　Fifth lens L6　Sixth lens L7 Seventh lens TF filter IMA imaging surface L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1, TFA1 Object side L1A2, L2A2, L3A2, L4A2, L5A1, L6A2, L7A2, TFA2 Side view L1A1C, L1A2C, L2A1C, L2A2C, L3A1C, L3A2C, L4A1C, L4A2C, L5A1C, L5A2C, L6A1C, L6A2C, L7A1C, L7A2C Optical axis area Circumferential area A1: Object side A2：Image side

Claims (20)

An optical imaging lens, which sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a lens along an optical axis from an object side to an image side. A seventh lens, each lens has an object side facing the object side and passing the imaging light and an image side facing the image side and passing the imaging light, wherein: the second lens has negative refractive power; An optical axis area of the object side of the third lens is a concave surface; a circumferential area of the object side of the fourth lens is a convex surface; an optical axis area of the object side of the fifth lens is a concave surface; the sixth lens It has negative refractive power and an optical axis area of the object side of the sixth lens is a convex surface; an optical axis area of the image side of the seventh lens is a concave surface; and the lens of the optical imaging lens only has the above seven lenses. . An optical imaging lens, which sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a lens along an optical axis from an object side to an image side. A seventh lens, each lens has an object side facing the object side and passing the imaging light and an image side facing the image side and passing the imaging light, wherein: the second lens has negative refractive power; An optical axis area of the object side of the third lens is concave and a circumferential area of the image side of the third lens is convex; the fourth lens has positive refractive power and an object side of the fourth lens The optical axis area is convex; The sixth lens has negative refractive power, and a circumferential area of the image side of the sixth lens is convex; the seventh lens has negative refractive power; and the lens of the optical imaging lens only has the above seven lenses, and Satisfies (T6+G67+T7)/(T2+T3+G34)≧2.500, T6 represents the thickness of the sixth lens on the optical axis, G67 represents the distance from the image side of the sixth lens to the seventh lens The distance between the object side and the optical axis, T7 represents the thickness of the seventh lens on the optical axis, T2 represents the thickness of the second lens on the optical axis, and T3 represents the thickness of the third lens on the optical axis. The thickness, G34, represents the distance on the optical axis from the image side of the third lens to the object side of the fourth lens. An optical imaging lens, which sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a lens along an optical axis from an object side to an image side. A seventh lens, each lens has an object side facing the object side and passing the imaging light and an image side facing the image side and passing the imaging light, wherein: a circumference of the object side of the second lens The area is convex; the third lens has negative refractive power and an optical axis area of the object side of the third lens is concave and a circumferential area of the image side of the third lens is convex; the sixth lens has The sixth lens has a negative refractive power and an optical axis area on the image side is concave; an optical axis area on the object side of the seventh lens is concave; and the lens of the optical imaging lens only has the above seven lenses, And satisfy (T6+G67+T7)/(T2+T3+G34)≧2.500, T6 represents the thickness of the sixth lens on the optical axis, G67 represents the distance from the image side of the sixth lens to the seventh lens The distance between the side of the object and the optical axis distance, T7 represents the thickness of the seventh lens on the optical axis, T2 represents the thickness of the second lens on the optical axis, T3 represents the thickness of the third lens on the optical axis, G34 represents the third lens The distance on the optical axis from the image side to the object side of the fourth lens. The optical imaging lens as claimed in claim 2 or 3, wherein G56 represents the distance on the optical axis from the image side of the fifth lens to the object side of the sixth lens, and T4 represents the distance between the fourth lens and the optical axis. The thickness on the axis, the optical imaging lens satisfies the conditional expression: (T2+G56+T6)/T4≦1.600. The optical imaging lens as described in claim 2 or 3, wherein T5 represents the thickness of the fifth lens on the optical axis, and the optical imaging lens satisfies the conditional expression: (G67+T7)/T5≧1.500. The optical imaging lens as claimed in claim 2 or 3, wherein G45 represents the distance on the optical axis from the image side of the fourth lens to the object side of the fifth lens, and G56 represents the image side of the fifth lens. The distance on the optical axis from the side surface to the object side surface of the sixth lens, G12 represents the distance on the optical axis from the image side surface of the first lens to the object side surface of the second lens, and the optical imaging lens satisfies Conditional expression: (G45+G56)/(G12+T2)≧1.500. The optical imaging lens as claimed in claim 2 or 3, wherein AAG represents the distance on the optical axis from the image side of the first lens to the object side of the second lens, and from the image side of the second lens to The distance from the object side of the third lens on the optical axis, the distance from the image side of the third lens to the object side of the fourth lens on the optical axis, the distance from the image side of the fourth lens to The distance on the optical axis from the object side of the fifth lens, the distance on the optical axis from the image side of the fifth lens to the object side of the sixth lens, and the distance from the image side of the sixth lens to The total distance of the object side of the seventh lens on the optical axis, BFL represents the distance on the optical axis from the image side of the eighth lens to an imaging plane, the optical imaging lens satisfies the conditional expression: AAG/( T3+BFL)≧1.700. The optical imaging lens as claimed in claim 2 or 3, wherein G12 represents the distance on the optical axis from the image side of the first lens to the object side of the second lens, and G45 represents the image side of the fourth lens. The distance on the optical axis from the side surface to the object side surface of the fifth lens. G56 represents the distance on the optical axis from the image side surface of the fifth lens to the object side surface of the sixth lens. The optical imaging lens satisfies Conditional expression: (G12+G45)/(G56+T6)≧1.400. The optical imaging lens as claimed in claim 2 or 3, wherein G23 represents the distance on the optical axis from the image side of the second lens to the object side of the third lens, and T4 represents the distance between the fourth lens and the optical axis. The thickness on the axis, the optical imaging lens satisfies the conditional expression: (G23+T4)/(T3+G34)≧2.800. The optical imaging lens as claimed in claim 2 or 3, wherein T1 represents the thickness of the first lens on the optical axis, T5 represents the thickness of the fifth lens on the optical axis, and G56 represents the thickness of the fifth lens. The distance on the optical axis from the image side to the object side of the sixth lens, the optical imaging lens satisfies the conditional expression: (T1+T5)/(G56+T6)≧2.400. The optical imaging lens as described in claim 2 or 3, wherein T5 represents the thickness of the fifth lens on the optical axis, and the optical imaging lens satisfies the conditional expression: (T5+T6+T7)/(T2+T3)≧ 2.200. The optical imaging lens as claimed in claim 2 or 3, wherein G45 represents the distance on the optical axis from the image side of the fourth lens to the object side of the fifth lens, and the optical imaging lens satisfies the conditional expression: G45+G67)/T6≧3.000. The optical imaging lens according to claim 1, 2 or 3, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens The sum of the thicknesses of the seven lenses on the optical axis, T1 represents the thickness of the first lens on the optical axis, G23 represents the distance on the optical axis from the image side of the second lens to the object side of the third lens. The optical imaging lens satisfies the conditional expression: ALT/(T1+G23)≦3.300. The optical imaging lens as claimed in claim 1, 2 or 3, wherein G45 represents the distance on the optical axis from the image side of the fourth lens to the object side of the fifth lens, and T5 represents the distance of the fifth lens on the optical axis. The thickness on the optical axis, G56 represents the distance on the optical axis from the image side of the fifth lens to the object side of the sixth lens, and BFL represents the distance from the image side of the eighth lens to an imaging plane. The distance on the optical axis, this optical imaging lens satisfies the conditional expression: (G45+T5+G56)/BFL≧1.500. The optical imaging lens as described in claim 1, 2 or 3, wherein ImgH represents the image height of the optical imaging lens, Fno represents the aperture value of the optical imaging lens, and the optical imaging lens satisfies the conditional expression: ImgH/Fno≧2.900 mm . The optical imaging lens as described in claim 1, 2 or 3, wherein V5 represents the Abbe number of the fifth lens, V6 represents the Abbe number of the sixth lens, V7 represents the Abbe number of the seventh lens, and V4 Represents the Abbe number of the fourth lens, and the optical imaging lens satisfies the conditional expression: (V5+V6+V7)/V4≧2.000. The optical imaging lens as described in claim 1, 2 or 3, wherein V3 represents the Abbe number of the third lens, V6 represents the Abbe number of the sixth lens, V7 represents the Abbe number of the seventh lens, and the The optical imaging lens satisfies the conditional expression: V3+V6+V7≦110.000. The optical imaging lens as claimed in claim 1, 2 or 3, wherein TL represents the distance on the optical axis from the object side of the first lens to the image side of the seventh lens, and ImgH represents the distance between the object side of the first lens and the image side of the seventh lens. Image height, this optical imaging lens satisfies the conditional expression: TL/ImgH≦1.600. The optical imaging lens as claimed in claim 1, 2 or 3, wherein TTL represents the distance on the optical axis from the object side of the first lens to an imaging surface, and T1 represents the distance on the optical axis of the first lens The thickness of AAG represents the distance on the optical axis from the image side of the first lens to the object side of the second lens, and the distance between the image side of the second lens and the object side of the third lens on the optical axis. The distance on the axis, the distance on the optical axis from the image side of the third lens to the object side of the fourth lens, the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis The distance on the axis, the distance on the optical axis from the image side of the fifth lens to the object side of the sixth lens, and the distance on the optical axis from the image side of the sixth lens to the object side of the seventh lens. The total distance on the axis, the optical imaging lens satisfies the conditional expression: TTL/(T1+AAG)≦2.800. The optical imaging lens as claimed in claim 1, 2 or 3, wherein BFL represents the distance on the optical axis from the image side of the eighth lens to an imaging plane, and G12 represents the distance from the image side of the first lens to the The distance between the object side of the second lens on the optical axis, G23 represents the distance on the optical axis from the image side of the second lens to the object side of the third lens, and the optical imaging lens satisfies the conditional expression: BFL/(G12+G23)≦1.500.

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